A simple PHP script to help test applications that access web pages. It provides a reliable way to simulate normal page load, 500 and 404 errors, redirects, PDF download, variable response delays, and a browser-killing huge te

network_tests.php

<?php /* A simple PHP script to help test applications that access web pages. 
         It provides a reliable way to simulate normal page load, 500 and 
         404 errors, redirects, PDF download, variable response delays,
         and a browser-killing huge text response.
    
         To install, copy to your PHP-enabled web server. There are no other
         dependencies. Access the script via your browser to see instructions.
    
         http://gist.github.com/gists/473681
         July 2010 - Jeremy Seitz 
      */

$q = $_GET['q'];
switch ($q) {
    case '':
        $show_usage = true;
        break;
    case 'ok':
        echo "ok";
        break;
    case '500':
        header("HTTP/1.1 500 Internal Server Error");
        echo 'Internal Server Error';
        break;
    case (preg_match("/wait(\d+)/i", $q, $matches) > 0):
        $t = $matches[1];
        sleep($t);                   
        echo "$t second delay";
        break;
    case 'redirect':
        header('Location: http://www.google.com/');
        break;
    case 'redirect_fail':
        header('Location: http://255.255.255.255/');
        break;
    case '404':
        header("HTTP/1.0 404 Not Found");
        echo '404 Error';
        break;  
    case 'pdf':
        header('Content-type: application/pdf');
        header('Content-Disposition: attachment; filename="downloaded.pdf"');
        $content = file_get_contents("http://www.copyright.gov/legislation/dmca.pdf");
        echo $content;
        break;
    case 'superlong':
        $i=1;
        while ($i < 100000){
            echo "<span>test</span> ";
        }
    default:
        echo "? unknown mode.";
        $show_usage = true;
}

?>
<? if ($show_usage){ ?>
<h1>Usage:</h1>
<?= $_SERVER['PHP_SELF'] ?>?q=X, where X can be:
<dl>
    <dt>ok</dt>
    <dd>Status code 200, "ok"</dd>
    <dt>500</dt>
    <dd>Status code 500, Server Error</dd>
    <dt>404</dt>
    <dd>Status code 404, Page not found</dd>
    <dt>redirect</dt>
    <dd>Redirect browser to http://google.com</dd>
    <dt>redirect_fail</dt>
    <dd>Redirect browser to bad network address</dd>
    <dt>wait1, wait2, ... wait 1000 ...</dt>
    <dd>Wait for N seconds before responding</dd>
    <dt>pdf</dt>
    <dd>Downloads a PDF file to browser</dd>
    <dt>superlong</dt>
    <dd>Displays an incredibly long page of text (crashes firefox)</dd>
</dl>
<a href="http://gist.github.com/gists/473681">http://gist.github.com/gists/473681</a>

<? } ?>